Two of the blocking plates that cover the unused ports on the distribution box of my furnace were laying on the floor behind the intake vents. Very little air coming from the heater vents, but lots of air coming from the "intake vent". Replaced both plates and reconnected the duct hoses that had been crushed during the build. The furnace now works fine with plenty of heat, no thanks to FR's quality control.
The "fireplace with logs" actually produces way more heat than the gas furnace. We never use the furnace unless there is no option.
2013 Silverado 2500 HD Duramax/Allison Tuned
Aviator Wright Flyer #1919
"First In, Last Out". 11B4Y
DAV, MOPH, VFW, 5/7 Cav,1/8 Cav Assoc.
11th ABN Pathfinder Co. N7MIP